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Magdalena Koziol, a former postdoc at Yale University, was the victim of scientific sabotage. Now, she is suing the...
Antiretroviral drugs can protect people from becoming infected by HIV. But so-called pre-exposure prophylaxis, or PrEP...
Two studies show that eating a diet low in protein and high in carbohydrates is linked to a longer, healthier life, and...
Considered an icon of conservation science, researchers at World Wildlife Fund (WWF) headquarters in Washington, D.C.,...
The new atlas, which shows the distribution of important trace metals and other substances, is the first product of...
Early in April, the first of a fleet of environmental monitoring satellites will lift off from Europe's spaceport in...
Since 2000, U.S. government health research agencies have spent almost $1 billion on an effort to churn out thousands...
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ScienceShot: Strong Jaws, Tiny Index Fingers
14 February 2012 7:02 pm
Kirk Douglas may have nabbed man's-man roles in Spartacus and other films by virtue of his jutting jaw. But casting directors seem to have missed one of the actor's manlier traits: a stubby index finger. Scientists have known that men boasting traditionally more masculine mandibles—think Douglas's iconic cleft chin—also tend to have short pointer fingers relative to their ring fingers. But no one knew if the trend held true for kids not yet through puberty. To find out, researchers photographed 17 boys between 4 and 11 years old. And, sure enough, those with more petite trigger fingers also bore bigger, rounder chins (at right). They also had smaller foreheads and thicker eyebrows, the group reports online in the Proceedings of the Royal Society B. High levels of in utero testosterone may help to shape both the digit mismatch and the lads' faces, pointing the importance of the hormone even early in life. Call it the Spartacus, Jr. effect.
See more ScienceShots.